Ford Focus Wagon 2001
Bought new key from dealer for $50.... Tried about 30 times to program the chip in it as per owners manual,
but it would not take. The Dealer wanted $50 more to hook up to a computer etc.
Finally I tried to put the ignition into programming mode via using the instructions to reprogram the remote entry. (turn ignition on and off 4 times until you hear a Bong.
Then I again tried reprogramming the key, and Voila! , it worked the first time.
Hope this helps someone else.
Ray